Display screen or portion thereof with transitional graphical user interface



The patent file contains at least one drawing executed in color. Copiesof this patent with color drawings will be provided by the Office uponrequest and payment of the necessary fee.

FIG. 1 is a front view of the first image in a sequence of a displayscreen or portion thereof with transitional graphical user interfaceshowing our new design;

FIG. 2 is the second image thereof;

FIG. 3 is the third image thereof; and,

FIG. 4 is the fourth image thereof.

The outer perimeter shown in dashed broken lines in the figuresillustrates a display screen or portion thereof and forms no part of theclaimed design. The remaining dashed broken lines in the figuresillustrate portions of the graphical user interface that form no part ofthe claimed design.

The appearance of the transitional graphical user interface sequentiallytransitions between the images shown in FIGS. 1 to 4. The process orperiod in which one image transitions to another image forms no part ofthe claimed design.

CLAIM The ornamental design for a display screen or portion thereof withtransitional graphical user interface, as shown and described.